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The text links elemental worship and epic stories to Magadh and Mithila, then portrays migration as a means to broader recognition. It offers a concise interpretive overview rather than a referenced chronological record.

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Source article · Original Wave 5 wording and headings are retained below. Editorial notes are separate.

From Vedic Times to Global Phenomenon

Chhath Puja has preserved its original purity longer than nearly all other Hindu festivals, mainly because it depends on nature instead of temples or priests.

Evolution of the Festival

Originating from the early Vedic veneration of elemental deities (Sun, Water, Fire), the festival’s mythological foundations are grounded in the epics of the Ramayana and Mahabharata. Initially limited to the farming communities of Magadh and Mithila (present-day Bihar), extensive internal migration during the 20th and 21st centuries evolved it from a localized agrarian rite into a significant urban and worldwide festivity.

About this edition: Adapted from the provided Wave 5 article. The original brief text has not been expanded. Cultural interpretations are based on the source; this is neither a medical review nor a confirmed event schedule.